Concrete-brick mold



Jan. 22,, 1924. 1-;4s1,4'i3

E. J. LARSON CONCRETE BRICK MOLD Filed Feb. 21, 1921 2 Sheets-Sheet 1 Fey, 7 6

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E. .J. LARSON CONCRETE BRICK MOLD Filed Feb. 21. 192! 2 Sheets-Sheet 2 NIH [N703 WQMM Ah HTTOP/VEY Patented Jan. 22, 1924.

CONCRETE-BRICK MOLD.

Application filed February 21, 1921. Serial 1T0. 448,725.

To all whom it may concern Be it known that I, ERICK J. LARsoN, citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Concrete- Brick Molds, of which the following is a specification. I

My invention relates to molds for forming bricks from concrete, and has for its purpose to provide a simple and eflicient device by the use of which a number of bricks can be produced at the same time. It has been difficult to make use of a mold contain ing a multiplicity of compartments, or individual molds for the bricks, on account of the impossibility of removing the bricks from the molds after the same had been baked. By the use of the present device this can be readily accomplished.

The invention not only embodies a multiple form of mold, but the molds are so constructed that they can be supported one above another on a truck, and run into a kiln or furnace in considerable quantities,

whereby the production can be greatly increased.

The above named, and other advantages of the invention will be more fully apprehended from the following specification, refernce being had to the accompanying drawings, in which:

Fig. 1 shows the invention in plan View.

Fig. 2 is a side view thereof.

Fig. 8 is a detail of one of the rods 7 Fig. 4. is a detail of one of the bars 9.

Fig. 5 is a bottom View of the invention.

Fig. 6 is a cross-section on the broken line 6-6 of Fig. 1.

Fig. 7 is a longitudinal section on the broken line 7-7 of Fig. 1.

1 represents a rectangular casing or frame, supported upon a pallet 2, preferably of metal. The frame is divided into compartments of approximate buildingbrick shape and size, by means of partitions 3 and' 4. The partitions 3 are formed of pairs of spaced-apart plates 5, unconnected at their lower-edges, and capable of a limited resilient movement with relation to each other. The partitions 4 are constructed similarly to the partitions 3, and have an intersecting connection therewith by means of recesses 6 cut downwardly into the upper portions of the partitions 4:, and similar recesses, cut upwardly into the lower portions of the partitions 3.

The plates 5 of the partitions 3 are held normally in spaced relation by means of rods 7 passing through recesses in the lower edges of the plates 4: and in the end plates of the frame 1. The rods 7 are pointed at one end and provided at the opposite ends with eyes 8', whereby such rods can be positioned in the partitions or withdrawn therefrom. The partitions 4i are similarly held in spread positions by means of bars 9, passing through recesses 10 in the sides of the frame and through similar recesses in the lower edges of the partitions 3. The bars 9 are provided at one end with eyes 11, and at the opposite ends with points adapted to project through perforations in the opposite side plate of the frame. The bars 9 are of approximately twice the width of the rods 7, and are provided with recesses 12 for the passage of such rods. The rods and bars thus intersect in such a way as to be flush with the lower edges of the partitions, entirely closing the lower ends thereof, and preventing any of the material contained in the mold from entering the spaces between the partition plates, so as to interfere with the perfect operation thereof.

The side plates of the mold are provided with openings 13, through which a portion of the metal forming the partitions is projected, and bent at an angle into plates 14%, which are secured to the frame 1. The end-plates of the frame are similarly provided with openings, to receive projecting ends of the partitions 3, a rigid union of the frame and partitions being thus secured. The openings in the side and end plates of the frame also permit the passage of heat throughout the mold when the same is a kiln, expediting the process of curing the bricks. The side pieces of the frame are further held against being forced outwardly by means of rods 15, passing through the upper parts of the partitions at, and threaded on their ends to receive nuts 16, by means of which they may be secured tightly in place. The frame is also provided at its ends with handles 17 by means of which it can be lifted.

In the operation of producing brick by the use of the mold, such mold is placed upon the pallet and the rods 7 and bars 9 are inserted in their proper places, serving to hold the Walls of all the compartments in parallel relation with each other, and with the outer frame. The mold is then filled to the upper edges of the partitions with a cement mixture in a semi-liquid form. The mold and its contents are then subjected to a high degree of heat, producing bricks of a desired form and consistency. The rods 7 and bars 9 are then removed, permitting a partial collapse of the partition Walls, upon which the same can be freed from the bricks by lifting the mold upwardly, leaving the bricks on the pallet.

Where it is desired to produce a quantity of brick at one time, the mold can be sup,-,

ported on a truck or other portable device, and after being filled, another pallet placed on top thereof, and another mold on the pallet, until there are several molds in a tier. When the truck is sufficiently loaded it can be moved into a kiln or other heating compartment for drying and curing the bricks.

The mold can be provided with any desired number of compartments that may be practicable, and changes in the form and arrangement thereof can be made without departing from the spirit and scope of the invention.

What I claim and desire to secure by Letters Patent, is: i

1. A device of the class described, comprising a suitable frame; a plurality of partitions having an intersecting connection with each other, dividing said frame into rectangular compartments, said partitions being formed of spaced-apart plates, capable of resilient movement with relation to each other; and intersecting bars removably held in saidpartitions, and holding the same normally in spaced-apart relations.

2. A device of the class described, comprising a suitable frame; a plurality of partitions having an intersecting connection with each other, dividing said frame into compartments, said partitions being formed of pairs of spaced-apart plates resiliently united at their upper edges, and. open at their lower edges; and intersecting bars removably held in said partitions at their open edges, normally closing the same, and holding the plates thereof in suitable spaced-apart relations.

In testimony whereof I afiix my signature.

ERICK J. LARSON. 

